Lotte Engineering & Construction (Lotte E&C), established in 1959, is a major South Korean construction company and a part of the Lotte Group conglomerate. Headquartered in Seoul, Lotte E&C specializes in a wide range of construction projects, including housing, architecture, civil engineering, and plant construction, both domestically and internationally. The company's portfolio includes notable projects such as the Lotte World Tower, South Korea's tallest building, and various infrastructure projects like expressways, subways, and bridges. Lotte E&C also operates internationally, with projects in countries across Asia, the Middle East, and other regions.